ISO 15926-14 PCA RDL
Table of Contents
Presented by Johan W. Klüwer, DNV – johan.wilhelm.kluewer@dnv.com
1 The new POSC Caesar Reference Data Library
Here: rds.posccaesar.org
The new PCA RDL is built as a set of ontologies, applying the W3C standard OWL 2.
- Home of the online version of ISO 15926-14
- A mid-level ontology – “textbook”-level vocabulary
- A hierarchy of modules that extend the vocabulary
2 A new website
- Each topical module has a homepage
- Browse the library – one page per term
- “Compressor” at https://rds.posccaesar.org/ontology/plm/rdl/PCA_100001002/
- “centimetre” at https://rds.posccaesar.org/ontology/plm/rdl/PCA_100003663/
- Documentation (like this page)
The site is built with the Hugo static site generator. Visual design to be improved.
3 Extensive links to other libraries
Examples:
- current PCA RDL; CFIHOS: Compressor
- unit of measure ontologies: quantity capacitance, unit farad
4 Documentation
This new website allows us to make documentation available alongside the library content.
- Tutorials
- Diagrams
- Excerpts in various forms, like tables and graphical diagrams
- example: cross-references for physical quantities
| Quantity | vector | PCA | DEXPI | CFIHOS | QUDT | OM |
|---|---|---|---|---|---|---|
| acceleration | L¹T⁻² | ACCELERATION | Acceleration | acceleration | ||
| area | L² | AREA | Area | Surface / area | Area | area |
| capacitance | M⁻¹L⁻²T⁴I² | CAPACITANCE | Capacitance | Capacitance | capacitance | |
| amount of substance fraction | 1 | MOLE FRACTION OF B | Amount of Substance of Fraction of B | amount of substance fraction | ||
| current density | L⁻²I¹ | LINEAR ELECTRIC CURRENT DENSITY | Linear Electric Current Density | Electric Current Density | current density |
5 Querying the RDL with SPARQL
- Using the SPARQL query language
- A Fuseki endpoint is available at https://rds.posccaesar.org/ontology/fuseki/index.html
- Examples will be provided in how-to pages
- Results available in various formats: CSV, XML, and JSON formats in addition to the native RDF
6 Accessing the OWL ontologies themselves
- we will document how to use the RDL terminology to model industrial assets using tested modelling patterns
- providing worked, extensive examples as downloadable ontologies
These examples can be used in widely available software applications, such as Protégé (free software, Stanford) and Gruff (Franz, Inc).
7 How the library is built and maintained
- The entire RDL is built from tabular content
- maintained in a Git repository
- using a build tool developed in the Readi JIP project
- By relying on OTTR templates, consistency across the library is secured
- The templates we use are available at https://rds.posccaesar.org/ontology/plm/tpl/0.1/